>>16818477It's a few reasons. He's improved greatly; he didn't really train growing up and has done most of it on the job.
There was a period where he was working an old school schedule, doing all the house shows, working RAW, Smackdown, and NXT the same week. I think only Cody worked more matches than him in that calendar year.
And lastly, he's a heat magnet. The vets know that crowd noise is what matters, and Dom gets massive reactions every single week, sometimes the loudest ones.